Results 11 to 20 of about 55,024 (177)

Achieving High‐Performance SiO@C Anode of Li‐Ion Batteries via a One‐Step Prelithiated Preparation Strategy

open access: yesRare Metals, EarlyView.
ABSTRACT Silicon oxide (SiO) is becoming the main anode for high‐energy lithium‐ion batteries because of its ease of manufacture, outstanding cycling stability, and high capacity. However, low initial Coulombic efficiency (ICE) caused by the irreversible reaction of silica, as the main issue, strictly limits its commercial applications.
Hailong Mei   +5 more
wiley   +1 more source

Research of Biological Macromolecule Sequence Prediction Method Based on Multi-Information Fusion [PDF]

open access: yes, 2016
随着测序技术的发展,生物大分子序列数量快速积累,迫切需要了解序列所蕴含的重要生命信息。近年来,生物大分子序列的结构与功能研究已经成为生物信息学领域研究的热点问题。目前,基于生物大分子序列和机器学习模型的方法是生物信息学领域中预测序列结构和功能的重要研究手段。本文从如何构建有效的序列向量化方法、分类算法、以及高质量数据集角度出发,对生物大分子序列预测的几个具体问题进行了深入研究,包括蛋白质结构类预测、蛋白质折叠模式类预测、细胞因子与受体相互作用预测、细胞穿透肽预测、以及microRNA前体预测 ...
魏乐义
core  

Ru‐Ag Dual Atom Sites for Methane Detection Enabling Intelligent Thermal Runaway Warning in Lithium‐Ion Batteries

open access: yesRare Metals, EarlyView.
ABSTRACT Early detection of thermal runaway (TR) is essential for lithium‐ion battery (LIB) safety, as unchecked TR risks catastrophic failures in energy storage systems. Gas‐based sensing offers a faster and more direct approach by detecting decomposition products at the molecular level.
Tianshui Liang   +9 more
wiley   +1 more source

铁路工程中土壤风蚀预测方法研究

open access: yesShuitu Baochi Xuebao, 2003
在分析了目前铁路工程中土壤风蚀预测常用方法(直接类比预测法)所存在问题的基础上,提出了一种新的适用于铁路工程(或其它交通工程建设)中土壤风蚀预测的计算方法--影响因子对比预测法.通过算例验证表明,其具有较好的适用性和预测精度.
奚成刚, 许兆义, 杨成永
doaj   +2 more sources

NS Family Models and Forecast of yield curves in China [PDF]

open access: yes, 2016
本文针对国内现有利率预测研究仍以计量模型为主的现象,考察具有经济意义背景的NS类拓展模型对我国利率预测的效果,引入带有无套利条件约束的AFNS模型,以银行间国债市场的中债估值为样本数据,选用基于最大似然估计的卡尔曼滤波对DNS、AFNS模型进行参数估计,以随机游走模型作为基准模型,采用逐次迭代的预测方式对三类模型在不同预测步长之下的利率进行测算,以预测值与实际值误差项的均值、标准差和均方根误差作为评判标准,找寻适合我国银行间债券市场的利率预测工具。 比较后发现,在预测步长较小时 ...
郭媛媛
core  

Changes of Potential Suitable Areas for Lynx Under Climate Change in Mohe Area, Daxing'anling Mountains, China

open access: yesWildlife Letters, EarlyView.
Climate change drives shifts in suitable habitats for Eurasian lynx and its prey (hare, roe deer) in Mohe, Daxing'anling Mountains. Under RCP scenarios, moderate warming (RCP4.5) promotes substantial habitat expansion, while high‐emission conditions (RCP8.5) lead to strong expansion in the 2050s but slower gains and partial contraction by the 2070s ...
Binglian Liu   +5 more
wiley   +1 more source

Design and Implementation for Daily Load Prediction Management System of Wenzhou Electric Grid [PDF]

open access: yes, 2015
电力负荷预测是电力系统管理的重要组成部分,对电网的安全、经济运行起着重要的作用。随着电网的发展和电力改革的不断深入,研究电力负荷预测方法并开发高效、实用的负荷预测管理系统已成为重要的课题。 本文主要对温州电网日负荷预测管理系统的设计与实现以及短期负荷预测方法进行了一系列的研究。针对温州电网调度部门的实际需求,根据温州电网的负荷特性及温州的气候特征,应用数据挖掘技术对温州电网历史负荷数据、气象数据进行相关性研究。本文开发了集综合数据管理、负荷分析与预测、负荷预测上报考核管理为一体的电网短期负荷预测管理平台,
胡元
core  

Scaling from microsite to landscape to resolve litter decomposition dynamics in globally extensive drylands

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop   +8 more
wiley   +1 more source

Greenhouse gas emissions from croplands of China [PDF]

open access: yes, 2003
China possesses cropland of 1.33 million km 2. Cultivation of the cropland not only altered the biogeochemical cycles of carbon (C) and nitrogen (N) in the agroecosystems but also affected global climate.
Bohan, Liao   +13 more
core   +1 more source

The coordination of dehydration tolerance and avoidance in oaks is mediated by leaf habit across a precipitation gradient

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Forests worldwide are increasingly impacted by drought due to climate change, prompting plants to adapt through dehydration tolerance (DT) and avoidance (DA), two distinct physiological strategies.
Xingyun Liang   +11 more
wiley   +1 more source

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